Tree Health · April 20, 2026 · 4 min read
Preventing Dutch Elm Disease in Edmonton with Elm Injections
Learn about preventative elm injections using Dutch Trig® to protect Edmonton trees from Dutch Elm Disease during the critical late spring treatment window.
Elm trees across Edmonton are at risk from Dutch Elm Disease — a fast-moving infection that can lead to decline and loss if left untreated. If you're new to elm care, you can learn more about elm trees in Edmonton here: Elm Trees in Edmonton
City Tree Service is offering preventative elm injections to protect healthy trees.
This treatment is only available during a short seasonal window, and availability is limited.
Who This Is For
This service is for:
- Homeowners with elm trees on private property
- Property managers responsible for mature trees
- Anyone looking to protect a valuable elm tree from disease
If you're unsure whether you have an elm tree, we're happy to help identify it.
What Are Elm Injections?
These trunk micro-injections are a preventative treatment designed to protect elm trees from Dutch Elm Disease. They are an excellent tool as part of an Integrated Pest Management program.
We use a biological vaccine called Dutch Trig®, which has been shown to be over 99% effective in preventing infection. It is not effective once the disease is present in the tree, or when the disease is spread through root grafts.
This is not a pesticide, insecticide, or fungicide — it works by helping the tree defend itself naturally.
Why Timing Matters
Elm injections must be applied during a very specific window in late spring:
- When leaves are approximately 75% open
- Typically late May to early June in Edmonton
Outside of this window, the treatment is not effective.
Because of this, we schedule all injections within a tight timeframe each year.
Limited Availability
We have a finite amount of product available this season.
Spots are filled on a first-come, first-served basis.
If you're interested, we recommend joining the waitlist as soon as possible.
[Join the Waitlist]
Pricing
Pricing is based on tree size.
- Most trees fall in the range of $400—$600 per year
We will confirm pricing once we review your tree details.
How to Get Started
Measure the trunk diameter at chest height (about 1.3 m from the ground). Measure across the trunk, not around it (diameter, not circumference!). We will remeasure before applying the injections to ensure accurate dosage.
To request the elm tree injection service:
Measure your tree (see photo above)
Submit your request
We confirm availability and pricing
Request Elm Injection Service
Frequently Asked Questions
How often does this need to be done?
Elm injections are a preventative treatment and must be applied annually to remain effective.
What is Dutch Elm Disease?
Dutch Elm Disease is a serious fungal disease that affects elm trees and can lead to rapid decline and death.
Is the treatment safe?
Yes. The product used is a biological vaccine and is considered safe when applied by trained professionals.
What if I miss this year's window?
You can still join our list for next year's treatment cycle.
Protect Your Tree
Elm trees are a valuable part of Edmonton's urban canopy. Preventive care is the most effective way to keep them healthy long-term.
If you have an elm tree on your property, this is the best time to act.
📞 Call: 780 271 8733
Email: info@citytree.ca
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